{
    "name" :"罗敏",
    "age" : 38,
    "qq" : 993642192,
    "friends" : ["王大锤", "李元芳"],
    "cars":[
        {"brand": "BYD", "max_speed": 180},
        {"brand": "Audi", "max_speed": 280},
        {"brand": "Benz", "max_speed": 320}
    ]
}